The expansion of the ranges of tropical fish was most likely caused by-
A. agricultural runoff that contributes to dead zones in the ocean
B. global droughts that raise the salt concentration of ocean waters
C. the rising temperatures of ocean waters
D. acid rain pollution that lowers the pH of ocean water

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

that's all i luck!